I think this is a bug of some sort. I’m paying to have a song mastered and the product is ready but I can’t submit the requirements to get my product. I click “Submit Requirements” and nothing happens. I have tried to resolve this issue on four different browsers at this point to no success.
Please contact the customer service
Alternatively, if the seller has been able to do the job already without you submitting the requirements and is able to deliver, the seller should have an option they can tick on the order page like “I have all the information I need” or something like that, which should start the gig and the timer and then they should be able to use the Deliver button.